1) Centralized single-stall breeding according to pregnancy time is convenient for observation and management sows and avoid sows fighting, competing for food, reduce the risk of miscarriage.

2) The specifications are mainly 2.2-2.4 m*0.65 m, which can be designed according to different pig groups before and after pregnancy.

3) Optimize gate opening equipment, there are two types of back doors with a single door and a double door. It is convenient for workers to operate the opening and closing of the gate.

4）Adopt the mode of all concrete floor feeder or stainless steel trough which is 304 stainless steel material with thickness is 1.2 mm.